jonathan GLANCEY: it took wright 15 years to realise the guggenheim; it has taken [zaha] HADID 10 to complete maxxi, as the museum is known (a play on the roman numerals for 21st century). there have been at least six changes of national government in italy since the project was first announced in 1998, from left to centre to right, and the future of many such public projects has often seemed doubtful. but now here it stands, in the residential and military flaminio district, almost exactly as HADID and her team first imagined it.